Cab-door



K. S. BAXTER.

CAB DOOR.

APPLICATION FILED OCT. 15, 1920.

Patented Sept. 13, 1921.

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UNITED STATES PATENT OFFICE.

KENNETH S. BAXTER, OF MICHIGAN CITY, INDIANA, ASSIGNOR TOISHEET STEEL PRODUCTS COMPANY, OF MICHIGAN CITY, INDIANA,- A CORPORATION OF INDIANA,

CAB-DOOR.

Application filed October 15, 1920. Serial No. 417,109.

7 '0 all whom it may concern:

Be it known that I, KENNET S. BAXTER, a citizen of the United States, and a resident of Michigan City, county of La Porte, and State of Indiana, have invented certain new and useful Improvements in Cab-Doors, of which the following is a specification 'and' which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to cab doors and has as an object the provision of such a door without a frame that shall be durable and of pleasing appearance. A further object is the provision of a combination of joints for securing the parts of such a door to each other.

An illustrative embodiment of the invention' is shown in the accompanying drawings, in which;

Figure l is an elevation of the door from the side which is designed to be placed toward the interior of the vehicle;

FFig. 2 is an edge view from the right. of

Figs. 3 and 4 are sections on lines 3-3 and 4- 1 respectively of Fig. 1,. the sections drawn on an enlarged scale;

Fig. 5 is a detail perspective of the upper joint of the door, an end of the view being in section.

The complete door is shown as comprising two sheet metal panels 10 and 11. In the form of the invention chosen for illustration the inside panel 10 has its lower margin 13 and its side margins 14 and 15 bent at right angles to the body of thepanel, as at 16, and again at right angles, as at 17, into a plane parallel with the body of the panel. The corresponding margins of the outer panel 11 are placed in contact with the portions 17 of the inside panel and are then folded thereabout, as at 18. This method of securing the panels together provides aflange 19 upon three sides of the door which'comprisesthree thicknesses of metal and is adapted to overlap the sides of the vehicle body when in use.

The upper margin of the outer panel 11 is bent at right angles to provide an edge of the door 19 equal in thickness to that formed by the portion 16 of the panel 10.,

The said upper margin is then bent downwardly, then outwardly and upwardly to provide the reverse bend 20. A corresponding, but opposed reverse bend 21 is formed.

on the upper margin of the inside panel 10 and a locking strip 22 is then slipped over the portions 20, 21. lVhen the strip is in place it is desirable to secure the ends of the joint as by the action of an oxy-acetylene flame.

The strip 22 not only adds stiffness to the upper edge of the door but also provides a pleasing finish with a rounded corner. If desired an opening 23 may be formed in the inner panel to make possible the use of the interior of the door as a pocket. lVhen so formed the panel is preferably provided with a stiffening corrugation, as at 24.

I claim as my invention:

1. A frameless sheet metal half do0r com.- prising, in combination, two sheet metal panels constituting respectively the inner and outer faces of the door, flanges on the two side edges and on the bottom edge of the inner panel parallel with but offset from the plane of the body of the inner panel and lying against the inner face of the outer panel, the corresponding margins of the outer panel being folded about sald flanges and forming therewith an inwardly facing .stop engaging shoulder comprising three thicknesses ofmetal extending about the said three sides of the door adjacent the plane of the outer face of the door, and a stiffening rib extending across the top of the door upon the inside face of the same produced by foldingt'he upper marginal portion of the inner panel outwardly and downwardly and folding the upper marginal portion of the outer panel inwardly to the plane of the inner panel thence downwardly to meet the folded upper edge of the inner panel and finally outwardly and upwardly substantially to the plane of the upper edge of the door, the said outwardly and downwardly folded portion of the inner panel and the said outwardly and upwardly folded portion of the outer panel respectively providing downwardly and upwardly facing parallel channels extending throughout the width of the door, and a locking strip covering the said meeting folded edges of the outer and inner panels throughout the width of the door, the longitudinal edges of the locking strip being inwardly folded upon the body of the strip and entering the said downwardly and upwardly facing channels respectively.

2. A sheet metal half door comprising, in combination, two sheet metal panels const Specification of Letters Patent. Patented Sept, 13, 1921,

tilting respectively the inner and outer faces of the door, means connecting the panels along their side and bottom edges, and a stiffening rib extending along the upper edge of the door upon one of its faces produced by folding the upper marginal portion of the adjacent panel outwardly and downwardly and folding the upper marginal portion of.the other panel inwardly to the plane of the first separately mentioned panel thence downwardly to meet the folded upper edge of the said first panel and finally outwardly and upwardly substantially to the plane of the upper edge of the door, the

said outwardly and downwardly folded portion of the said first panel and the said out- Wardly and upwardly folded portion of the other panel respectively providing downwardly and upwardly facing parallel-channels extending throughout the width of the door and a locking strip covering thesaid meeting folded edges of the two panels throughout the width of the door. the longitudinal edges of the locking strip being inwardly folded upon the body of the strip and enteringthe said downwardly and upwardly facing channels respectively.

KENNETH S. BAXTER. 

